2 stepped yeast starter question

[crbice]

I'm brewing a high gravity stout here in about 4 days. I have done a little research and having a strong yeast to pitch seems to be the ticket. I have been advised to do a two step starter. Since I was planning on doing a 48hr starter should I start today decant in 48 hours and add another DME solution and wait another 48 hours (totaling 96 hours)?


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[MyLastGamble]

I'm no expert on yeast starters, and someone can correct me if I'm wrong, but that seems like a good idea. Make a starter, when its ready to pitch, make another starter with the healthy yeast. I wouldn't use a 1000ml flask for this, make sure you have a larger vessel and enough boiled extract to get the nutrients and room it needs. High population and health are key for larger abv beers.

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[IvanTheTerribrew]

That's right. The process is make a yeast starter once it's settled a bit decant the spend liquid and then pitch the new slurry into a new solution of water and DME. Each should go for 2-3 days. And using a stir plate would only make it better.

Use this site to calculate how much yeast you need, have, and can produce.

http://www.brewersfriend.com/yeast-pitch-rate-and-starter-calculator/

Just put it in as a two step starter. Or, you may find that you don't even need two steps. Good luck


- ISM NRP